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ScriptComponent.PrimeOutput Method

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Prepares the outputs in Script components, such as sources and transformations with asynchronous outputs, that add new rows to the output buffers.

Namespace:  Microsoft.SqlServer.Dts.Pipeline
Assembly:  Microsoft.SqlServer.TxScript (in Microsoft.SqlServer.TxScript.dll)

public virtual void PrimeOutput(
	int Outputs,
	int[] OutputIDs,
	PipelineBuffer[] Buffers
)

Parameters

Outputs
Type: System.Int32
The count of the outputs of the components.
OutputIDs
Type: System.Int32[]
An array of type Integer that contains the IDs of the outputs of the components.
Buffers
Type: Microsoft.SqlServer.Dts.Pipeline.PipelineBuffer[]
An array of PipelineBuffer objects that contains the output rows.

The Script component developer does not use the ScriptComponent class directly, but indirectly, by coding the methods and properties of the ScriptMain class, which inherits from ScriptComponent through the UserComponent class.

Although the developer can override the PrimeOutput method, it is usually sufficient to override the CreateNewOutputRows method in the ScriptMain class to load data into the output buffers.

The following code sample from the autogenerated ComponentWrapper project item shows how the Script component uses the PrimeOutput method in a component with two outputs.

    Public Overrides Sub PrimeOutput(ByVal Outputs As Integer, ByVal OutputIDs() As Integer, ByVal Buffers() As PipelineBuffer)

        For I As Integer = 0 To Outputs - 1
            If OutputIDs(I) = 29 Then
                Output0Buffer = New Output0Buffer(Buffers(I), GetColumnIndexes(OutputIDs(I)))
            End If
            If OutputIDs(I) = 126 Then
                Output1Buffer = New Output1Buffer(Buffers(I), GetColumnIndexes(OutputIDs(I)))
            End If
        Next

        CreateNewOutputRows()

    End Sub
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